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Patent number:
Patent Date:
US Patent: 464,167
Chain Wrench
Patentee:
Abel C. Whittier (
exact
or
similar
names) - Boston, MA
USPTO Classifications:
81/69
Tool Categories:
wrenches
:
pipe wrenches
:
chain and strap wrenches
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Howard F. Eaton
Henry Westendarp
L. A. Washburne
Jas. H. Churchill
Patent Dates:
Applied:
Jun. 03, 1891
Granted:
Dec. 01, 1891
Patent Pictures:
Abel C. Whittier patent December 1, 1891
USPTO
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Description:
The wrench uses "link" chain; the "shoe" contacting the pipe is smooth, and the handle and chain are in line. The grip is provided by the contact of all the chain links rather than relying on a set of gripping teeth.
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